touch panel technologies and integration - renesas e … · leading by mobile phone and tablet pca...

Renesas Electronics America Inc.

© 2012 Renesas Electronics America Inc. All rights reserved.

Class ID: Class ID:

Touch Panel Technologies and Integration

4C02B

Tommy Miwa, Sr. Manager

Renesas Electronics America

© 2012 Renesas Electronics America Inc. All rights reserved. 2

Tommy Miwa (三輪知生)

Regional Engineer and District sales Sr. Manager

FAE support for Northwest and Southwest regions

Liaison between REA and NLT Japan for new products and marketing

Additional Work Experience

19 years LCD experience with NLT/NEC and Renesas

– Business Plan and Cost down at Purchasing Engineering div.

– Product manager at Module Design division – primarily for design of medium size LCDs

– Mechanical engineer at Module Design div

Miwa Tomoo


Renesas Technology & Solution Portfolio


Display Module Solutions Sophisticated solutions Sustainable support

LED Backlight LCDs

Wide Format LCDs

Suited for a variety of ambient-light environments

Proprietary transflective LCD technologies

– Reflective-Enhanced View TFT (R-EVT)

– Transmissive-Enhanced View TFT (T-EVT)

More data on a single screen

16:9 aspect ratio

Low power consumption

Long life LEDs

Thin profile and light weight design

Replaceable LED light source unit

High luminance and wide color gamut

Superior image quality

Ultra-wide viewing angles

2D/3D displays

On-cell touch

PCAP touch

Robust feature sets

Long-term product support

Amorphous silicon (A-Si) displays

Low-temperature polysilicon (LTPS) displays

LED Backlight LCDs Enhanced View TFT (EVT)

Wide Format LCDs Super-Fine TFT (SFT)

Industrial Mobile Displays Emerging Technologies


General

Touch panel market trends

Touch panel technologies

Renesas/NLT solutions

What is the benefit to the customer

Options

Line up of projective capacitive (PCAP) solutions

Agenda


General


Touch Panel Market Trend

Units(Billions)

0

0.5

1

1.5

2

2.5

2010 2011 2012 2013 2014 2015 2016 2017

Source : DisplaySearch

Leading by Mobile phone and Tablet PCA CAGR 16.5% (2010-2017)


Touch Panel Market Trend – by Type

Units(Billions)

Source : DisplaySearch

Market Trend Leader is PCAP (Projective Capacitive).

0

0.5

1

1.5

2

2.5

2010 2011 2012 2013 2014 2015 2016 2017

Others

Resistive

PCAP


Touch Panel Technologies

Touch Panel

Resistive

Capacitive

Infrared

Projected Capacitive

Surface Capacitive

Analog

Digital

Acoustic Wave

Surface Acoustic Wave

Bending Wave

Digitizer


Resistive Touch

Glass substrate

Adhesive tape PET film

Touch panel cross-section image

When PET film is pushed by stylus pen or finger, ITO films contact each other.

The touch position is determined by measuring the electric resistance between the electrodes.

Styluss pen or Finger

ITO film

FPC


Resistive Touch

Analog

Ex. 4wire type

Digital

Matrix type


4-wire version

Membrane resistance (transparent ITO)

Electrode

Electric conduction occurs by pushing

Resistive Touch


5-wire version


Electrode

Transparent conductive film (ITO)

Membrane resistance (transparent ITO)

Resistive Touch


8-wire version


Reference voltage

Reference voltage

Electrode

Membrane resistance

Membrane resistance

- Similar structure to the 4-wire

Resistive Touch


Infrared and Acoustic Wave Touch

Acoustic Wave

Touch position is determined by the sound waves picked up each transducer.

Infrared

Touch position is determined where the photoreceptor was hidden.

Infrared lights

Infrared lights

Photoreceptor

Photoreceptor

Sound Transducer


Surface Capacitive Touch

Electrode Membrane resistance (transparent ITO)

Cover Glass

Electrostatic capacity

between finger and

each electrodes.

Touch position is determined by the

intensity of the electric current from

each electrode.


Projected Capacitive Touch

Controller

Touch position is determined by the

measurement of electrostatic

capacity. Electrostatic capacity

between finger and

each electrodes.

Front glass

Sensor grid

Back glass

Ele

ctr

osta

tic

ca

pac

ity


Projected

Capacitive

Glass

Base

Film

Base

Single Glass 2Glass Film/Glass Single Film 2Film

Sensor layer by ITO and metal wire

*ITO : Indium Tin Oxide

Projected Capacitive Touch


Comparison of Touch Panel Technologies

Type of Touch Technology Benefits Limitations

Projected Capacitive High durability

Multi touch

Works on curved

surface

Mainly finger touch Exclusive IC

Resistive 4wire Simple structure

Simple Controller IC

Needs calibration

Mainly Single Touch

Optical performance

5wire Longest life of resistive technologies

Large footprint

Needs calibration

Optical performance

8wire No calibration

Large footprint

Exclusive IC Optical performance

Surface Capacitive High transmittance Exclusive IC

Infrared

High transmittance Reliability, Long life Large size (100inch)

Resolution Exclusive IC Sensitive to ambient light

Acoustic Wave

Any touch-object High Durability

Exclusive IC Soft touch

Digitizer High resolution Original pen only


Renesas / NLT Touch Solutions


What is the benefit for the customer?

Same NLT Industrial Product Support & TCO Policies

- Same Long Term product life as LCD module

- Stable and consistent support through product life

- Same EOL and phase out policy as LCD module

More Efficient & Cost Effective Material Management

- Single supplier source for orders, quality, support, etc.

- Design, Production and Assembly of PCAP 100% NLT

- Customer Service by NLT/REA

Customization and Flexibility

- Ability to support a customized solution at NLT factory level

(i.e. sensor design, glass size, flex design, cover glass, etc.)

Ability to Support Variety of Volume Levels

- As low as 1.2 K pc EAU

*TCO : Total Cost of Ownership


Simple Design Process

Step1 Step2 Step3

【Before】

【NLT solution】

Select LCD Design of

Touch Screen

Matching/Assembling

LCD and Touch Screen

Step1

Providing LCD

with Touch Screen

Product

Product

Same TCO

Same Support

Same Quality

Single Supplier

Single Order


Benefits for mechanical design

Narrow frame

Single glass design

General PCAP using and combining 2 pieces of glass for sensor.

NLT provides flexible design for customers

NLT PCAP General PCAP

NLT has the know-how for “fine” ITO process.


PCAP Options


Options

Standard

Clear(AFP)

Film

Cover Panel

&

Decorated Panel

Bonding

AG (AFP) Film

AFP: Anti Finger Print


Standard

Standard

PCAP

Thickness : LCD + approx. less than 1mm

LCD

Air gap

Adhesive Tape

Note: PCAP is added to the front of the display.

For ruggedization NLT suggests customers add a cover panel.


Cover panel style

Options

Thickness : approx. LCD +2mm to 4mm

PCAP

LCD

Air gap

Cover Panel Adhesive Tape

OCA*

* OCA: optical clear adhesive Cover Panel design

-Glass : approx. less than 3mm

-Resin/PC : approx. less than 1.2mm


Cover panel style

Options

PCAP

LCD

Air gap

Cover Panel Adhesive Tape

OCA **

Options

1. AFP* (Clear)

2. AFP* (AG)

3. AR

Thickness : + approx. less than 0.2mm

*AFP: Anti Finger Print

** OCA: optical clear adhesive


Options

Bonding

Thickness : LCD + approx. 1mm

LCD

PCAP Optical Bonding


Tough style

Options

Thickness : approx. LCD +2mm to 4mm

LCD

PCAP Optical Bonding

Cover Panel

OCA*

* OCA: optical clear adhesive


Line up of PCAP products


－ PCAP Type －

10.4”

10.6” Wide

12.1” Wide

10.4” LEDLED

12.1”W LEDLED

10.6”W LEDLED

15” LEDLED

15”

Base; NL10276BC20-18D

Base; NL10276BC30-34D etc.

Base; NL12876AC18-03D etc.

Base; NL12880BC20-05D etc.

Mass Production

Under Development

Under Planning

Line-up

Sample : Now

Sample : Dec

2013 2012

12.1” 12.1” LEDLEDSample : Dec Base; NL10276BC24-21/21F etc.

Sample : Now

6.5”

Sample : Now

Sample : Dec 6.5” LEDLED

Base; NL10276BC13-01


General Specifications

Preliminary Spec. of 6.5” with PCAP

● Number of pixels 1024 x 768 pixels (XGA)

● Display area 132.096(H) x 99.072(V) mm

● Pixel pitch 0.129(H)×0.129(V) mm

● Luminance (400) cd/m2 typ.

● Contrast ratio (500):1 typ.

● Viewing angle R:80°,L:80°,U:80°,D:60°

● Color gamut 36% typ. (to NTSC)

● Module size 153.0(H) x 118.0(V) x (11.0) (D)mm typ.

● Response time 25 msec typ. (Ton+Toff)

● Weight TBD g typ.

● Display color 16,777,216 / 262,144 colors

● Interface signals LVDS 8bit/6bit

● Supply voltage 3.3V

● Backlight type Edge light type : LED

● Power cons. 3.9W typ. (except for touch panel)

(at LED current = 15 mA and checkered flag pattern)

● Surface treatment Clear (Touch panel surface)

● Operation temp (-20) to (+70) ℃

● Storage temp (-30) to (+80) ℃

● LED replacement Available

● Recommend LED Driver Board TBD

● Estimated luminance

life time of LED itself 13,000h at Ta=25℃ (LED current=60mA)

● Mounting method Side mount

● Touch Panel type Projected Capacitive Touch Panel

● Number of Touch up to 16 concurrent touches

(11) mm 153.0 mm

132.096 mm

11

8.0

mm

99

.07

2 m

m

Touch Panel FPC

LED

Touch Panel (Projected Capacitive)

*1

*1

*1

*1

*1 PCAP : at standard type



Preliminary Spec. of 10.4” with PCAP


● Display area 210.432(H) x 157.824(V) mm

● Pixel pitch 0.2055(H)×0.2055(V) mm


● Contrast ratio (800):1 typ.

● Viewing angle R:80°,L:80°,U:80°,D:80°


● Module size 228.0(H) x 178.5(V) x (9.5) (D)mm typ.





● Supply voltage 3.3V








● Recommend LED Driver Board 104PW02F






(9.5) mm 228.0 mm

210.432 mm

17

8.5

mm

15

7.8

24 m

m

Touch Panel FPC

LED


*1 *1

*1

*1

*1




Preliminary Spec. of 10.6”Wide with PCAP

● Number of pixels 1280 x 768 pixels (WXGA)

● Display area 230.4 (H) x 138.24 (V) mm

● Pixel pitch 0.18 (H) × 0.18 (V) mm


● Contrast ratio (1000:1) typ.

● Viewing angle R:88°, L:88°, U:88°, D:88°


● Module size 248.8 (H) x 155.8 (V) x (7.3) (D)mm typ.

● Response time (25) msec typ. (Ton+Toff)




● Supply voltage 3.3V (LCD Panel)

5.0V to 12.0V (LED Backlight)


● Power cons. (3.2) W typ. (except for touch panel)





life time of LED itself 30,000h at Ta=25℃


● LED Driver Circuit Built-in




248.8 mm

15

5.8

mm

230.4 mm

13

8.2

4 m

m

(7.3) mm

Touch Panel FPC


*1

*1

*1

*1




Preliminary Spec. of 12” with PCAP

LED



● Pixel pitch 0.24 (H) × 0.24 (V) mm








● Display color 16,777,216 colors

● Interface signals LVDS 8bit



● Power cons. 7.5 W typ. (except for touch panel)



● Operation temp -30 to +70 ℃

● Storage temp -30 to +80 ℃








260.5 mm

20

3.0

m

m

10.7 mm

245.76 mm

18

4.3

2 m

m

*1

*1

*1


*1 *1 PCAP : at standard type




LED



● Pixel pitch 0.24 (H) × 0.24 (V) mm
























260.5 mm

20

3.0

m

m

10.7 mm

245.76 mm

18

4.3

2 m

m

*1

*1

*1


*1 *1 PCAP : at standard type



Preliminary Spec. of 12.1”Wide with PCAP

LED

● Number of pixels 1280 x 800 pixels (WXGA)


● Pixel pitch 0.204 (H) × 0.204 (V) mm
























277.7 mm

18

0.6

mm

261.12 mm

16

3.2

mm

(9.5) mm

Touch Panel FPC



*1

*1

*1

*1




LED



● Pixel pitch 0.297 (H) × 0.297 (V) mm
























326.5 mm

25

3.5

mm

14.5 mm

304.128 mm

22

8.0

96 m

m




PCAP Controller board

● Outline (80.0) (H) x (28.0) (V) typ.

● Operation temp (-20 to +70) ℃

● Storage temp (-30 to +80) ℃

● Supply voltage 5.0V (USB Bus power)

● Power cons. TBD

● Interface USB 2.0 Full speed

● Connector USB mini-B

● Supported OS Windows 7 (HID Digitizer device)

Windows 8 (Planning)

Linux (Planning to disclose source code)

(80.0) mm

(28

.0)

mm

(4.2

) m

m

(5.7

) m

m

US

B C

on

ne

cto

r

FP

C C

on

ne

cto

r

No. Symbols

1 VBUS (+5V)

2 D-

3 D+

4 N.C.

5 GND

- Interface Pin Connections


FAQ

Q) Is it available for Multi touch?

A) It’s 10 fingers.

*depending on the size.

10.4”/10.6”W/12.1”W are available for 16 fingers

Q) Is it available for customization of FPC shape and position?

A) Yes, please ask FAE, however it needs NRE.

Q) Is it available for Windows8?

A) Yes. If the customer will use with stylus, please ask FAE.

The sensor of PCAP will need to change the sensor pitch due to definition of Windows 8.

Q) Is it available without Controller IC?

A) Yes, however there are no tuning service.


Touch panel is the major HMI (Human Machine Interface), especially PCAP.

As of today, there is no “best” touch solutions.

Best touch solution is determined by customer’s application, display conditions and preferences.

Renesas/NLT solutions provide you more efficient & cost effective material management

Single supplier source for orders, quality, support, etc.

Design, Production and Assembly of PCAP 100% NLT

Customer Service by NLT/REA

Summary


Questions?


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touch panel technologies and integration - renesas e … · leading by mobile phone and tablet pca...

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